import java.util.Enumeration;
import java.util.Properties;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: ling
 * Date: 2022-04-21
 * Time: 9:52
 */
//public class Demo {
//    public static void main(String[] args) {
//        Properties p=new Properties();
//        p.setProperty("Username","tom");
//        p.setProperty("Password","123");
//        p.setProperty("Role","admin");
//        Enumeration names=p.propertyNames();
//        while(names.hasMoreElements()){
//            String key=(String)names.nextElement();
//            String value=p.getProperty(key);
//            System.out.println(key+"="+value);
//        }
//    }
//}
public class Demo{
    public static void main(String[] args) {
        int[][] arr={{1,2,3},{4,5,6},{7,8,9}};
        for(int [] oneArr:arr){
            for(int n:oneArr){
                System.out.print(n+" ");
            }
            System.out.println();
        }
    }
}